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Frequency distribution of complexity and improvement grade.
| Serial no. | Complexity grade | Frequency | Percentage |
|---|---|---|---|
| 1 | Easy | 11 | 3.92 |
| 2 | Mild | 23 | 8.21 |
| 3 | Moderate | 32 | 11.42 |
| 4 | Difficult | 140 | 50 |
| 5 | Very difficult | 74 | 26.42 |
| Serial no. | Improvement grade | Frequency | Percentage |
|---|---|---|---|
| 1 | Greatly improved | 155 | 55.35 |
| 2 | Substantially improved | 92 | 32.85 |
| 3 | Moderately improved | 30 | 10.71 |
| 4 | Minimally improved | 03 | 1.71 |
| 5 | No improvement/worsening | 00 | 00 |
